868710687 has 16 divisors (see below), whose sum is σ = 1248774240. Its totient is φ = 533993472.

The previous prime is 868710671. The next prime is 868710691. The reversal of 868710687 is 786017868.

It is not a de Polignac number, because 868710687 - 2⁴ = 868710671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868710617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24243 + ... + 48219.

It is an arithmetic number, because the mean of its divisors is an integer number (78048390).

Almost surely, 2^868710687 is an apocalyptic number.

868710687 is a deficient number, since it is larger than the sum of its proper divisors (380063553).

868710687 is a wasteful number, since it uses less digits than its factorization.

868710687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24922.

The product of its (nonzero) digits is 903168, while the sum is 51.

The square root of 868710687 is about 29473.8984018063. The cubic root of 868710687 is about 954.1684553689.

The spelling of 868710687 in words is "eight hundred sixty-eight million, seven hundred ten thousand, six hundred eighty-seven".